/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file           : main.c
  * @brief          : Main program body
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; Copyright (c) 2020 STMicroelectronics.
  * All rights reserved.</center></h2>
  *
  * This software component is licensed by ST under BSD 3-Clause license,
  * the "License"; You may not use this file except in compliance with the
  * License. You may obtain a copy of the License at:
  *                        opensource.org/licenses/BSD-3-Clause
  *
  ******************************************************************************
  */
/* USER CODE END Header */

/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "gpio.h"
#include "u8g2.h"
#define OLED_DI_Pin GPIO_PIN_11
#define OLED_DO_Pin GPIO_PIN_10




u8g2_t u8g2;
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */

/* USER CODE END Includes */

/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */

/* USER CODE END PTD */

/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE END PD */

/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */

/* USER CODE END PM */

/* Private variables ---------------------------------------------------------*/

/* USER CODE BEGIN PV */

/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
/* USER CODE BEGIN PFP */

/* USER CODE END PFP */

/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
uint8_t u8x8_stm32_gpio_and_delay(U8X8_UNUSED u8x8_t *u8x8,
    U8X8_UNUSED uint8_t msg, U8X8_UNUSED uint8_t arg_int,
    U8X8_UNUSED void *arg_ptr)
{
  switch (msg)
  {
		case U8X8_MSG_GPIO_I2C_DATA:
			(arg_int)?SET_BIT(GPIOB->ODR,OLED_DI_Pin):CLEAR_BIT(GPIOB->ODR,OLED_DI_Pin);
			break;
		case U8X8_MSG_GPIO_I2C_CLOCK:
			(arg_int)?SET_BIT(GPIOB->ODR,OLED_DO_Pin):CLEAR_BIT(GPIOB->ODR,OLED_DO_Pin);
			break;
		case U8X8_MSG_GPIO_AND_DELAY_INIT:
					
					HAL_Delay(1);
			break;
		case U8X8_MSG_DELAY_MILLI:
			HAL_Delay(arg_int);
			break;
			
  }
  return 1;
}
/* USER CODE END 0 */

/**
  * @brief  The application entry point.
  * @retval int
  */
int main(void)
{
  /* USER CODE BEGIN 1 */

  /* USER CODE END 1 */

  /* MCU Configuration--------------------------------------------------------*/

  /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
  HAL_Init();

  /* USER CODE BEGIN Init */

  /* USER CODE END Init */

  /* Configure the system clock */
  SystemClock_Config();

  /* USER CODE BEGIN SysInit */

  /* USER CODE END SysInit */

  /* Initialize all configured peripherals */
  MX_GPIO_Init();
  /* USER CODE BEGIN 2 */
	
  /* USER CODE END 2 */

  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
	u8g2_Setup_ssd1306_i2c_128x64_noname_f(&u8g2,U8G2_R0,u8x8_byte_sw_i2c,u8x8_stm32_gpio_and_delay);
	u8g2_InitDisplay(&u8g2); // send init sequence to the display, display is in sleep mode after this,
  u8g2_SetPowerSave(&u8g2, 0); // wake up display
  HAL_Delay(1000);

  //u8g2_DrawLine(&u8g2, 0,0, 128, 64);
  //u8g2_SendBuffer(&u8g2);
	const char *txt="test";
  while (1)
  {
    /* USER CODE END WHILE */
		HAL_GPIO_TogglePin(GPIOC,GPIO_PIN_4);
		HAL_Delay(1000);
		
//		u8g2_DrawLine(&u8g2, 0,0, 128, 64);
//		u8g2_SetFont(&u8g2,u8g2_font_ncenB08_tr); 
//		u8g2_DrawStr(&u8g2,0,20,"Welcome to U8G2!"); 
//		u8g2_DrawStr(&u8g2,20,40,"Welcome to U8G2!"); 
//		u8g2_SendBuffer(&u8g2);
		
//		u8g2_SetFont(&u8g2,u8g2_font_unifont_t_chinese1); 
//		u8g2_DrawUTF8(&u8g2,30,60,"gg"); 
//		u8g2_SendBuffer(&u8g2);
		
		u8g2_SetFontMode(&u8g2, 1);  // Transparent
    u8g2_SetFontDirection(&u8g2, 0);
    u8g2_SetFont(&u8g2, u8g2_font_inb24_mf);
    u8g2_DrawStr(&u8g2, 0, 20, "U");
    
    u8g2_SetFontDirection(&u8g2, 1);
    u8g2_SetFont(&u8g2, u8g2_font_inb30_mn);
    u8g2_DrawStr(&u8g2, 21,8,"8");
        
    u8g2_SetFontDirection(&u8g2, 0);
    u8g2_SetFont(&u8g2, u8g2_font_inb24_mf);
    u8g2_DrawStr(&u8g2, 51,30,"g");
    u8g2_DrawStr(&u8g2, 67,30,"\xb2");
    
    u8g2_DrawHLine(&u8g2, 2, 35, 47);
    u8g2_DrawHLine(&u8g2, 3, 36, 47);
    u8g2_DrawVLine(&u8g2, 45, 32, 12);
    u8g2_DrawVLine(&u8g2, 46, 33, 12);
		
		u8g2_SetFont(&u8g2,u8g2_font_unifont_zgzt_x); 
		u8g2_DrawUTF8(&u8g2, 0, 60,"万 事 如 意 ");
		u8g2_DrawUTF8(&u8g2, 60, 60,"事 事 顺 心 ");
		//u8g2_DrawGlyph(&u8g2,40,50,0x95f4);//0x65f6
		u8g2_SendBuffer(&u8g2);
		
    /* USER CODE BEGIN 3 */
  }
  /* USER CODE END 3 */
}

/**
  * @brief System Clock Configuration
  * @retval None
  */
void SystemClock_Config(void)
{
  RCC_OscInitTypeDef RCC_OscInitStruct = {0};
  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};

  /** Initializes the CPU, AHB and APB busses clocks 
  */
  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
  RCC_OscInitStruct.HSIState = RCC_HSI_ON;
  RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
  {
    Error_Handler();
  }
  /** Initializes the CPU, AHB and APB busses clocks 
  */
  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
                              |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_HSI;
  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;

  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)
  {
    Error_Handler();
  }
}

/* USER CODE BEGIN 4 */

/* USER CODE END 4 */

/**
  * @brief  This function is executed in case of error occurrence.
  * @retval None
  */
void Error_Handler(void)
{
  /* USER CODE BEGIN Error_Handler_Debug */
  /* User can add his own implementation to report the HAL error return state */

  /* USER CODE END Error_Handler_Debug */
}

#ifdef  USE_FULL_ASSERT
/**
  * @brief  Reports the name of the source file and the source line number
  *         where the assert_param error has occurred.
  * @param  file: pointer to the source file name
  * @param  line: assert_param error line source number
  * @retval None
  */
void assert_failed(uint8_t *file, uint32_t line)
{ 
  /* USER CODE BEGIN 6 */
  /* User can add his own implementation to report the file name and line number,
     tex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
  /* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
